6225639533568 has 2112 divisors, whose sum is σ = 24301250355200. Its totient is φ = 1580182732800.

The previous prime is 6225639533543. The next prime is 6225639533569. The reversal of 6225639533568 is 8653359365226.

6225639533568 is a `hidden beast` number, since 6 + 2 + 2 + 5 + 6 + 39 + 5 + 33 + 568 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6225639533569) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 34395798438 + ... + 34395798618.

Almost surely, 2^{6225639533568} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6225639533568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12150625177600).

6225639533568 is an abundant number, since it is smaller than the sum of its proper divisors (18075610821632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6225639533568 is a wasteful number, since it uses less digits than its factorization.

6225639533568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281 (or 237 counting only the distinct ones).

The product of its digits is 209952000, while the sum is 63.

The spelling of 6225639533568 in words is "six trillion, two hundred twenty-five billion, six hundred thirty-nine million, five hundred thirty-three thousand, five hundred sixty-eight".